States of Matter (100/357)

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COLLIGATIVE PROPERTY: FREEZING CUPRIC SULFATE(AQ)
CuSO4*5H2O (Copper II Sulfate)
A nonvolatile solute (CuSO4) lowers the freezing point of the solvent, water. As the almost pure solvent freezes out, the solution becomes more concentrated and the freezing point lowers further.